Given the recent Authentication and Online Trust Alliance Summit, there’s been quite a buzz about authentication, deliverability and sender reputation in the world of email marketing. I’ll admit, using a reputable ESP makes me a little *yawn* unconcerned with the technical aspects of authentication & reputation, but it is no doubt important stuff.

Luckily for me, (and maybe you too) George Bilbrey of deliverability & reputation firm Return Path, has posted a quick and easy-to-understand recap about how ISPs/receivers handle your mail and what it means to them.

If you can’t bare to get that nitty gritty, at least check out this very cool tool George mentions in the article www.senderscore.org - you can look up your sender IP address and get all the dirty details ISPs learn about you when you send to them!

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